Hi sleepyheadzz,
Congratulations on your new mattress 
Just for the sake of clarification for others who may read your post … with Amazon fulfilled orders the TMU discount doesn’t apply and the trial period and return policy would be Amazon’s 30 day return policy (see post #11 here) instead of the 100 days free return policy that applies to orders placed through the Tuft & Needle site.
I’m looking forward to your comments and feedback once you’ve received it and have had the chance to sleep on it for a bit.
Phoenix